Works



W.'P SALISBURY.

Coal Hod.

No. 232,618. Patented Sept. 28,1880.

IN VEN TOR 5 MPETEna. PHOTO-LITHOBRAPNER. WASHINGTON. D c

UNITED STATES.

PATENT Orrrce. V

WARREN F. SALISBURY, OF TROY, NEW'YORK, ASSIGNOR TO THE TROY STAMPINGWORKS, OF SAME PLAOE.

COAL-HOD.

SPECIFICATION formingpart of Letters Patent N01 232,618, dated September28, 1880.

t Application filed April 7, 1876. I

T all whom it may concern:

Be it known that I, WARREN F. SALISBURY, of the city of'Troy, in thecounty of Rensselaer and Stateof New York, have invented a new anduseful Improvement in the Manufacture of Ooal-Hods, of which thefollowing is a specification, reference being had to the accompanyingdrawings, in which Figure 1 is a side elevation, Fig. 2 a frontelevation, and Fig. 3 a plan, of a coal-bod made according to thisinvention. Fig. 4 is a longitudinal section of the'same hod at the line2 z in Figs. 2 and 3, and nearly full of coal and inclined to the front.Fig. 5 is asection of the samehod at the line 3 y in Fig. 1; Fig. 6,asection at the line as x, and Fig. 7 a section at the line to 20. Fig. 8represents, in full lines, a single blank of sheet metal from which thewhole body and spout of the same hod were formed and another blank fromwhich the bottom of the hod was made, and that figure also illustratesby broken lines the manner in which aseries of equal numbers of thosetwo blanks can be economically cut from a sheet of proper width.

A, Fig. 8, is the single blank of sheet metal from which the body Bandspout O of the hod are formed, and Dis the sheetmetal blank fromwhich the bottom E of the hod is made. The blank A has its two rearends, (1 r and r q, straight and in line, or nearly so, with each other,and its outer side, t t t t, of the convex shape shown in Fig. 8, andits semioval concave inner side, r 1 4, so deeply recessed as to giveroom between it and astraight line joining the two inner corners, 1" W,of the ends for the circular blank D, as clearly shown in Fig. 8.

The broken and full lines in Fig. 8 show how several of the blanks A andan equal number of the bottom blanks, D, can be easily cut inalternately-reversed positions, and with only very little scrap orwaste, from a sheet whose edges are indicated by the broken lines o cand u a.

In forming the body and spout B O of the 110d from the blank A the outerside, t t t 25 is bent over to receive a strengthening-wire,s,'

and then rolled tightly down around the latter, and it will be observedthat that side of the blank has no angles, and is of such shape that itcan be thus wired very quickly and cheaply by the uninterrupted actionfrom one end of the blank to the other of the rollers usually employedin wiring sheet-metal ware. The wired blank is then bent into thegeneral form of the body and spout of the hod, and its rear ends, (1 rand r q, are double-seamed together at 12, and the inner side, rr 0, ofthe blank is conformed and secured to the bottom E and rim-base F in theordinary or any suitable manner. The blank A is notched at its outercorners, t q t q, so that when the blank is wired along its outer sideand its ends are seamed together there is only one thickness of thesheet metal around the wire at the j unction.

By constructing the blank A with its rear.

cessed deep enough for the bottom blank, D,

and'the forward part, 0 4, very much wider than the rear portions, m m mm, and the intervening parts of gradually-decreasing width and convex onthe outer sides, 25 25 all substantially as shown in Fig. 8, equalnumbers of the blanks A and D can be out from a sheet of suitable widthwith but very little scrap, as shown by Fig. 8.

Another important result of this particular construction of the blank Ais that when the blank A is wired along its outer side, and has its endsq r r q seamed together, and is secured to the bottom E and base F, asdescribed, and is bent into the shape represented by Figs. 1, 2, 3, and4, in which the lines g, h, and i, Fig. 3, represent horizontal sectionsof the body and spout at the lines d cl, 0 e, and ff, Figs. 1 and 2, thestraight, fiat, front side, a, of the spout O is then more nearlyhorizontal than vertical, and is inclined less than forty-five degreesto the plane of the base F of the hod, as shown by Figs. 1 and 4, so asto cause the coal to pour out over the lip l by only a small inclinationof the hod, as indicated in Fig. 4, while the gradually rising anddescending and upwardly and rearwardly flaring wings k k prevent thecoal from the rear upper parts, j, from falling off over the sides ofthe hod in pouring the coal out of the spout.

I am aware that the body and spout of a coalhod have been heretoforecommonly formed from asingle sheet-metal blank having its ends straightand seamed together at the back in making the hod; but in all such casesthe ends of the blank, as cut from the sheet metal, were greatlyinclined to each other, and were not nearly in line, and the innerconcave side of the blank was not curved deep enough to allow a blankfor the bottom of the hod to be cut from the recess, and the blank didnot have its inner and outer edges in the particular curved parabolicshapes and relative positions and distances apart that are hereinbeforedescribed, and shown in Fig. 80f the accompanying drawings, and whichare, necessary for the'production from a single blank of a hod body andspout having the particular useful shapeand relative size, position, anddegree of inclination of the spout and other parts hereinbeforespecified, and represented by the other figures in the same drawings.

It is essential to this invention that the surface inclosed by andbetween the curved or parabolic lower edge, a" r 0, Fig. 8, of thebody-blank A and the straight line a" T, which connects thelendsthereof, shall be of greater area than, and of as great length and widthas, the bottom blank, D, so that the latter can be cut entire from theotherwise waste-piece bounded by the lines 1" r r and r 1', as shown inFig. 8, and I believe that this important practical result was neveraccomplished before my present invention.

It is furthermore essential to this invention that the blank A shall beshaped and proportioned as hereinbefore specified, so that while thewhole body and spout can be made therefrom in the particular useful formabove described, several of the blanksA and an equal number of thebottom blanks, B, can be cut in alternate opposite directions from asheet of metal of substantially the same width as the length of theblank A, as shown in Fig. 8, whereby coal-hods of the useful improvedform shown in the accompanying drawings can be manufactured from sheetsof metal of suitable width with less waste-scrap and at a cheaper ratethan the coal-hods heretofore made of like size from sheet-metal blanksof the shapes and proportions heretofore used in making coalhods.

WVhat I claim as my invention is-- A coal-hod having the straight flatbottom a of its spout inclined at an angle of less than forty-fivedegrees to the plane of the base of the hod, and having the body, spout,and bottom all of the particular shape described and shown, and formedfrom the two sheet-metal blanks A and D, as described, the blank Ahaving its inner edge, a" r W, of parabolic shape, its back edges, q rand q 4, straight and in the same straight line, and its outer edge, 1?t 13 13 paraboliform and arranged in respect to the inner edge as shown,and the blank D being circular and of a diameter less than and nearly asgreat as the depth of the curve of the inner edge of the blank A, as setforth.

In testimony whereof I hereunto set my hand, in the presence of twosubscribing witnesses, this 4th day of April, 1876.

WARREN F. SALISBURY.

Witnesses ROBERT A. RICHARDS, J. J. TILLINGHAST.

